中间包永久层用耐材

中间包永久层用耐材

Refractories used in the tundish safety lining

高铝浇注料是以高铝莫来石原料为主，以水泥或微粉为结合剂的不定型产品，具有强度高，特别是中温强度高，热震性好的特点。在中间包中采用高铝莫来石预制块和铝锆预制块替代高铝浇注料能明显提高使用寿命，提高中间包使用的安全性。

Using high alumina mullite as rawmaterial, cement or micro-powder as binding agents, the Hi-Al2O3 castables is one unshaped refractory and has the benefits of high

strength,especially under medium temperature, and good thermal shock resistance. Substituting high alumina castables with high alumina mullite or Al2O3-ZrO2 based precast block can extend the tundish lifespan and enhance the security in the service.

高铝莫来石高铝浇注预制件 铝锆预制件 料 High alumina Al2O3-ZrO2 High mulite precast Alumina precast block Castables block CHA-2A CHM-4SB LZ-1A 2.85 60.5 ≥70 3.05 60.0 90.0 项目Item 体积密度Bulk 110℃×24h 2.68 Density(g/cm3) 110℃×24h 64.5 耐压强度 Cold Crushing 1500℃×3h 85.7 Strength(MPa) 抗折强度 Modulus of Rupture(MPa) 残余线膨胀 Residual Linear 1500℃×3h +.48 Change(%) Al2O3 68.50 化学成份 ZrO2 - Chemical SiO2 15.6 Composition(%) 使用部位 Application +0.25 80.00 - 7.35 +0.13 78.00 5.20 - 110℃×24h 7.0 - 12 9.2 12.5 1500℃×3h 12.0 侧墙Side 非渣线渣线Slag Wall Non-slagline Line 铁水包用铝碳化硅碳不烧砖

铁水包用铝碳化硅碳砖是以刚玉、铝矾土、石墨、碳化硅为主要原料，经低温烘烤而成的不烧制品，产品具有较好的抗侵蚀性、耐剥落性和蠕变性。

Al2O3-SiC-C Brick is based on corundum, bauxite, Graphite, Siliconcarbide, bonded by resin. It is suitable for general use in the working lining of torpedo car or hot metal car, the high purity carbon and corundum provide excellent resistance to highly corrosion, spalling and creep.

ADL30RADL40ADL50ADL60RS-ADL60RS-3ADL60RS-项目Item S2 RS RS 3F K-2 5K 显气孔率Apparent Porosity(%) 体积密度Bulk 2.6 Density(g/cm) 耐压强度Cold Crushing Strength(MPa) 化学成份 Al238.00 38.7 43.0 Chemical O3 CompositionSiC 4.50 4.18 4.50 (%) 4.50 9.30 13.40 11.30 4.60 51.0 54.5 58.2 50 50 50 50 60 55 38.5 8.0 7.5 8.5 7.3 7.4 2.6 2.7 2.8 2.9 2.8 C 11.50 11.80 10.50 11.50 铁线/铁线/铁线/包底 包底 包底 底 Metal Metal Metal Metal Line/ Line/ Line/ Line/ 铁线/包铁线高强铁线 度品 Metal M/L High Line 使用部位 Application BarreBarreStrength Barrel Barrel l l